Abstract
A three-dimensional sodium imaging technique with a minimum echo time of 0.9 ms is described in a 2.0 Tesla whole-body system. The relaxation behaviour in vivo of sodium was analysed: a fast T*2 relaxation component between 1.2 and 1.6 ms and a slow T*2 relaxation component between 7.1 ms and 8.4 ms were quantified in brain tissue of three volunteers. Three-dimensional sodium images of the human brain were acquired in 8.5 min with a resolution of 4.7 × 4.7 × 10 mm (0.2 cc voxel size) and a signal-to-noise ratio of 20 in brain tissue and 30 in cerebrospinal fluid.
Original language | English |
---|---|
Pages (from-to) | 63-69 |
Number of pages | 7 |
Journal | Magnetic Resonance Materials in Physics, Biology and Medicine |
Volume | 13 |
Issue number | 2 |
DOIs | |
State | Published - 2001 |
Externally published | Yes |
Keywords
- Biexponential relaxation
- Human brain
- Magnetic resonance imaging
- Sodium imaging